CN208025573U - Micro-wave oven - Google Patents

Abstract

The utility model provides a microwave oven, which comprises a main body of the microwave oven, a first electrical component, a second electrical component, a volute, a first fan and a second fan. The first electrical part and the second electrical part are located in the main body of the microwave oven; the volute defines the first air duct and the second air duct, the air outlet of the first air duct corresponds to the first electrical part, and the air outlet of the second air duct corresponds to The second electrical part is set; the first fan is located in the first air duct; the second fan is located in the second air duct. In the microwave oven provided by the utility model, since the first fan and the second fan are provided, compared with the related art where a fan is used to dissipate heat from the first electrical part and the second electrical part, the heat dissipation of the first fan and the second fan can be greatly reduced. The size of the fan can greatly reduce the rotation speed of the first fan and the second fan, thereby reducing the noise when the microwave oven is in operation, and improving the heat dissipation effect of the first electrical component and the second electrical component.

Description

Micro-wave oven

technical field

The utility model relates to the field of kitchen utensils, in particular to a microwave oven.

Background technique

At present, microwave ovens are widely used in people's lives as utensils for heating food. There are electrical parts inside the microwave oven, and good heat dissipation is the prerequisite for the normal operation of the microwave oven. As shown in Figure 1 and Figure 2, a fan 30' is used to dissipate heat for electrical parts. The main electrical parts are the magnetron 10' and the transformer 20'. The air from the fan 30' is directly diffused and flows in the cavity, and the heat dissipation effect is average. , and the fan 30' will produce aerodynamic noise. The noise problem is one of the main complaints from microwave oven users. Microwave oven products need to have a significant improvement in the noise index, so as to improve user satisfaction.

Utility model content

The utility model aims at at least solving one of the technical problems existing in the prior art.

Therefore, the purpose of the utility model is to provide a microwave oven.

To achieve the above object, the technical solution of the present invention provides a microwave oven, comprising: a main body of the microwave oven; a first electrical component and a second electrical component located in the main body of the microwave oven; and a volute defining a first air duct and a The second air channel, the air outlet of the first air channel is set corresponding to the first electrical component, and the air outlet of the second air channel is set corresponding to the second electrical component; the first fan is located in the first in the air duct; and a second fan located in the second air duct.

In the microwave oven provided by the above-mentioned embodiments of the utility model, the air outlet of the first air duct is set facing the first electrical component, and the air outlet of the second air duct is set facing the second electrical component, so that the first fan is used to control the first electrical component. To dissipate heat, the second fan is used to dissipate heat from the second electrical part. Due to the arrangement of the first fan and the second fan, compared with the related art where a fan is used to dissipate heat from the first electrical part and the second electrical part, it can be greatly improved. Reduce the size of the first fan and the second fan, and can greatly reduce the speed of the first fan and the second fan, thereby reducing the noise when the microwave oven is working, and can improve the protection of the first electrical component and the second electrical component heat radiation.

In addition, the microwave oven provided by the above technical solution of the utility model also has the following additional technical features:

In the above technical solution, preferably, the first electrical component and the second electrical component are arranged in the vertical direction, the first air channel and the second air channel are arranged in the vertical direction, and the first fan and the The second blower is arranged along the up and down direction.

The first electrical component is located above the second electrical component, correspondingly, the first air duct is located above the second air duct, and the first fan is located above the second fan. Of course, it is also possible that the first electrical component is located below the second electrical component, and correspondingly, the first air duct is located below the second air duct, and the first fan is located below the second fan.

In the above technical solution, preferably, there is a gap between the air outlet of the first air channel and the first electrical component.

In the above technical solution, preferably, the microwave oven further includes a third electrical component; the third electrical component is arranged close to the first electrical component, and the third electrical component is located in the first air duct away from the first electrical component. One side of the second electrical part, and the first air duct is located on the same side of the first electrical part, the third electrical part is located above the volute, and the third electrical part and the volute are located on the same side of the first electrical part , There is a gap between the air outlet of the first air channel and the first electrical component, so that part of the air volume blown by the first fan through the air outlet of the first air channel can be dispersed to dissipate heat to the third electrical component, preventing the third electrical component from The temperature is too high to ensure the service life of the third electrical component; or, the third electrical component is located between the first electrical component and the second electrical component, and the third electrical component is connected to the first electrical component The air ducts are respectively located on opposite sides of the first electrical component; or, the third electrical component is located at an air inlet of the first air duct or the second air duct.

In the above technical solution, preferably, the air outlet of the first air duct is attached to the first electrical component.

The air outlet of the first air duct can also be closely connected with the first electrical part, that is, the air outlet of the first air duct is in close contact with the surface of the first electrical part, so as to improve the heat dissipation effect on the first electrical part, thereby further reducing the temperature of the first electrical part. The size and speed of the first blower reduce the noise of the first blower.

In the above technical solution, preferably, the microwave oven further includes a third electrical component; the third electrical component is located between the first electrical component and the second electrical component, and the third electrical component is connected to the second electrical component The volute is respectively located on opposite sides of the first electrical component; or, the third electrical component is located at the air inlet of the first air duct or the second air duct.

Preferably, the third electrical component is a small circuit board.

In the above technical solution, preferably, there is a gap between the air outlet of the second air channel and the second electrical component.

In the above technical solution, preferably, the microwave oven further includes a fourth electrical component; the fourth electrical component is arranged close to the second electrical component, and the fourth electrical component is located in the second air duct away from the first electrical component. One side of an electrical part, and the same side as the second air duct is located on the second electrical part, so that the air volume blown by the second fan through the air outlet of the second air duct is used for the second electrical part to dissipate heat. At the same time, it can also dissipate heat to the fourth electrical component. The fourth electrical component is located under the volute and is located on the same side as the second electrical component with the volute. Further, the main body of the microwave oven includes a bottom plate, which is located between the first electrical component and the second electrical component. Below the second electrical part, and constitute part of the cavity wall of the cooling cavity, the first electrical component, the second electrical component, the volute, and the third electrical component are located in the cooling cavity, and the fourth electrical component is also located in the cooling cavity and arranged on the bottom plate superior. The air outlet of the second air channel is not in close contact with the second electrical component, and there is a certain gap (distance) between the two, so that part of the air volume of the second fan can be dispersed to enhance the heat dissipation of the fourth electrical component. prevent the fourth electrical component from rising too high; or, the fourth electrical component is located between the first electrical component and the second electrical component, and the fourth electrical component and the second air duct are respectively Located on opposite sides of the second electrical component; or, the fourth electrical component is located at the air inlet of the first air duct or the second air duct.

Preferably, the fourth electrical component is a high voltage diode.

In the above technical solution, preferably, the gap between the air outlet of the first air duct and the first electrical component is smaller than the gap between the air outlet of the second air duct and the second electrical component.

In the above technical solution, preferably, the air outlet of the second air duct is attached to the second electrical component.

In the above technical solution, preferably, the volute includes a first plate, the first plate is arranged away from the second electrical component, and forms part of the side wall at the air outlet of the first air duct, Along the air outlet direction of the first air channel, the first board is inclined away from the second electrical component, so that the wind blown by the first fan through the air outlet of the first air channel can affect the third electrical component. At this time, the first air duct is R-shaped or approximately R-shaped; and/or, along the air outlet direction of the first air duct, the air outlet of the first air duct is away from the second The direction of the electric part is inclined, so that the heat dissipation effect of the first fan on all parts of the first electric part is consistent or close to the same, so that the temperature of all parts of the first electric part is uniform.

In the above technical solution, preferably, the volute includes a second plate, the second plate is arranged away from the first electrical component, and forms part of the side wall at the air outlet of the second air duct, Along the air outlet direction of the second air channel, the second board is inclined away from the first electrical component, so that the wind blown by the second fan through the air outlet of the second air channel can affect the fourth electrical component. components to dissipate heat, at this time the second air duct is R-shaped or approximately R-shaped; and/or, along the air outlet direction of the second air duct, the air outlet of the second air duct is away from the first The direction of the electric part is inclined, so that the heat dissipation effect of the second fan on all parts of the second electric part is consistent or close to the same, so that the temperature of all parts of the second electric part is uniform.

In the above technical solution, preferably, the first fan is a centrifugal fan; and/or, the second fan is a centrifugal fan; and/or, the first electrical component includes a magnetron; and/or, the The second electrical component includes a transformer or a frequency converter; and/or, the volute is a hollow structure, and the hollow structure is provided with a device that separates the hollow structure into the first air channel and the second air channel. or, the volute includes a first sub-volute and a second sub-volute, the first sub-volute defines the first air passage, and the second sub-volute defines the Second airway.

Additional aspects and advantages of the invention will become apparent in the description which follows, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present utility model will become apparent and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 is a schematic structural diagram of a microwave oven in the related art;

Fig. 2 is a schematic structural diagram of a part of a microwave oven in the related art.

Wherein, the corresponding relationship between reference numerals and component names in Fig. 1 and Fig. 2 is:

10' magnetron, 20' transformer, 30' fan.

Fig. 3 is a schematic structural view of the microwave oven according to Embodiment 1 of the present invention;

Fig. 4 is a schematic cross-sectional structure diagram of the microwave oven according to the first embodiment of the present invention.

Wherein, the corresponding relationship between reference numerals and component names in Fig. 3 and Fig. 4 is:

1 first electrical part, 2 second electrical part, 3 first fan, 4 second fan, 5 first air duct, 6 second air duct, 7 third electrical part, 8 fourth electrical part, 9 volute, 91 clapboard, 92 first plate body, 93 second plate body, 10 rear guide vane, 11 power cord, 12 high voltage capacitor, 13 microwave oven main body, 131 bottom plate.

Detailed ways

In order to more clearly understand the above purpose, features and advantages of the utility model, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

In the following description, a lot of specific details are set forth in order to fully understand the utility model, but the utility model can also be implemented in other ways different from those described here, therefore, the protection scope of the utility model is not limited by the following disclosure limitations of specific examples.

A microwave oven according to some embodiments of the present utility model will be described below with reference to the accompanying drawings.

As shown in FIG. 3 and FIG. 4 , a microwave oven according to some embodiments of the present invention includes a microwave oven main body 13 , a first electrical component 1 , a second electrical component 2 , a volute 9 , a first fan 3 and a second Fan 4. The first electrical part 1 and the second electrical part 2 are located in the main body 13 of the microwave oven; the volute 9 defines the first air duct 5 and the second air duct 6, and the air outlet A of the first air duct 5 is set corresponding to the first electrical part 1 , the air outlet B of the second air duct 6 is set corresponding to the second electrical component 2; the first fan 3 is located in the first air duct 5; the second fan 4 is located in the second air duct 6.

In the microwave oven provided by the above-mentioned embodiments of the utility model, the air outlet of the first air duct 5 is set facing the first electrical component 1, and the air outlet of the second air duct 6 is set facing the second electrical component 2, thereby utilizing the first fan 3 The first electrical component 1 is radiated, and the second fan 4 is used to dissipate the heat of the second electrical component 2. Since the first fan 3 and the second fan 4 are provided, compared with the related art, a fan is used to dissipate the heat of the first electrical component. 1 and the second electrical component 2 to dissipate heat, can greatly reduce the size of the first fan 3 and the second fan 4, and can greatly reduce the speed of the first fan 3 and the second fan 4, thereby reducing the operating temperature of the microwave oven. noise, and can improve the heat dissipation effect on the first electrical component 1 and the second electrical component 2 .

Embodiment one:

As shown in FIG. 3 and FIG. 4 , a microwave oven includes a microwave oven main body, a first electrical component 1 , a second electrical component 2 , a volute 9 , a first fan 3 and a second fan 4 . The first electrical part 1 and the second electrical part 2 are located in the main body of the microwave oven; the volute 9 defines the first air duct 5 and the second air duct 6, the air outlet of the first air duct 5 is set corresponding to the first electrical part 1, and the second The air outlet of the second air duct 6 is set corresponding to the second electrical component 2 ; the first fan 3 is located in the first air duct 5 ; the second fan 4 is located in the second air duct 6 .

Regarding the structure of the volute 9, in the first specific embodiment, the volute 9 is a hollow structure, and the hollow structure is provided with a partition 91 that separates the hollow structure into the first air passage 5 and the second air passage 6, The hollow structure is divided into the first air channel 5 and the second air channel 6 by the partition plate 91, the first air channel 5 and the second air channel 6 form a single volute double outlet air channel, cooperate with the first fan 3 and the second air channel Fan 4 forms a longer air outlet in the height direction of the microwave oven. One end of the partition 91 close to the air outlets of the first air duct 5 and the second air duct 6 can be flush with the air outlets of the first air duct 5 and the second air duct 6, or the partition 91 is located between the first air duct 5 and the second air duct. One end of the air outlet of the second air duct 6 is located inside the first air duct 5 and the second air duct 6 air outlets, or the partition 91 protrudes outwards at one end of the first air duct 5 and the second air duct 6 air outlets The air outlets of the first air passage 5 and the second air passage 6.

In the second specific embodiment, the volute 9 includes a first sub-volute and a second sub-volute, the first sub-volute defines the first air passage 5, and the second sub-volute defines the second air passage 6. The first sub-volute is connected or not connected with the second sub-volute. Preferably, both the first sub-volute and the second sub-volute are R-shaped. The first sub-volute and the second sub-volute are located on the same side of the first electrical component or are located on opposite sides of the first electrical component, for example, as shown in Figures 3 and 4, the first sub-volute and the second sub-volute The shells are all located on the left side of the first electrical part. Of course, the first sub-volute and the second sub-volute can also be located on the left side of the first electrical part, and the other is located on the right side of the first electrical part and the second electrical part. side.

Preferably, the first electrical component 1 and the second electrical component 2 are arranged in the vertical direction, the first air channel 5 and the second air channel 6 are arranged in the vertical direction, and the first fan 3 and the second fan 4 are arranged in the vertical direction.

The first electrical component 1 is located above the second electrical component 2 , correspondingly, the first air duct 5 is located above the second air duct 6 , and the first fan 3 is located above the second fan 4 . Of course, it is also possible that the first electrical component 1 is located below the second electrical component 2 , correspondingly, the first air duct 5 is located below the second air duct 6 , and the first fan 3 is located below the second fan 4 .

Preferably, there is a gap between the air outlet of the first air duct 5 and the first electrical component 1 .

Preferably, the microwave oven further includes a third electrical component 7 .

With regard to the position of the third electrical part 7, in the first specific embodiment, the third electrical part 7 is arranged close to the first electrical part 1, and the third electrical part 7 is located in the first air duct 5 away from the second electrical part 2. One side, and the first air duct 5 is located on the same side of the first electrical part 1, the third electrical part 7 is located above the first air duct 5, and the third electrical part 7 and the first air duct 5 are located on the first electrical part 1 On the same side, there is a gap between the air outlet of the first air channel 5 and the first electrical component 1, so that part of the air volume blown by the first fan 3 through the air outlet of the first air channel 5 can be dispersed to the third electrical component 7 Heat dissipation is performed to prevent the temperature of the third electrical component 7 from being too high and ensure the service life of the third electrical component 7 . As shown in FIG. 4 , the third electrical part 7 is located above the first air duct, the second electrical part is located under the first air duct, and both the third electrical part and the first air duct are located on the right side of the first electrical part.

In the second specific embodiment, the third electric part 7 is located between the first electric part 1 and the second electric part 2, and the third electric part 7 and the volute 9 are respectively located on opposite sides of the first electric part 1. side.

The height of the third electrical component 7 is between the height of the first electrical component 1 and the height of the second electrical component 2, the volute 9 is located on one side of the first electrical component 1, and the third electrical component 7 is located on the first electrical component 1 on the other side. For example, the volute 9 is located on the right side of the first electrical component 1 , and the third electrical component 7 is located on the left side of the first electrical component 1 .

In a third specific embodiment, the third electrical component 7 is located at the air inlet of the first air duct 5 or the second air duct 6, that is, the third electrical component 7 is located at the inlet of the first fan 3 or the second fan 4. At the outlet.

Preferably, the third electrical component 7 is a small circuit board.

Preferably, there is a gap between the air outlet of the second air duct 6 and the second electrical component 2 .

Preferably, the microwave oven further includes a fourth electrical component 8 . Preferably, the fourth electrical component 8 is a high voltage diode.

Regarding the position of the fourth electrical part 8, in the first specific embodiment, the fourth electrical part 8 is arranged close to the second electrical part 2, and the fourth electrical part 8 is located at the side of the second air duct 6 away from the first electrical part 1. One side, and be positioned at the same side of the second electrical part 2 with the second air channel 6, the air volume that the second blower fan 4 blows out through the air outlet of the second air channel 6 like this can also be used for the heat dissipation of the second electrical part 2. The fourth electrical part 8 is radiated. The fourth electrical part 8 is located under the volute 9 and is located on the same side of the second electrical part 2 as the volute 9. As shown in FIG. 4, the first electrical part is located in the second wind The upper side of the duct, the third electrical part is located below the second air duct, and both the third electrical part and the second air duct are located on the right side of the second electrical part. Further, the main body 13 of the microwave oven includes a bottom plate 131, the bottom plate is located below the first electrical component 1 and the second electrical component 2, and forms a part of the cavity wall of the heat dissipation cavity. The first electrical component 1, the second electrical component 2, the volute 9 . The third electrical component 7 is located in the heat dissipation cavity, and the fourth electrical component 8 is also located in the heat dissipation cavity and arranged on the bottom plate 131 . The air outlet of the second air channel 6 is not in close contact with the second electrical part 2, and there is a certain gap (distance) between the two, so that part of the air volume of the second blower fan 4 can be dispersed to strengthen the fourth electrical part. 8 to prevent excessive temperature rise of the fourth electrical component 8.

In the second specific embodiment, the fourth electrical part 8 is located between the first electrical part 1 and the second electrical part 2, and the fourth electrical part 8 and the volute 9 are respectively located on opposite sides of the second electrical part 2. side.

The height of the fourth electrical component 8 is between the height of the first electrical component 1 and the height of the second electrical component 2, the volute 9 is located on one side of the second electrical component 2, and the fourth electrical component 8 is located on the second electrical component 2 on the other side. For example, the volute 9 is located on the right side of the second electrical component 2 , and the fourth electrical component 8 is located on the left side of the second electrical component 2 .

In the third specific embodiment, the fourth electrical component 8 is located at the air inlet of the first air duct 5 or the second air duct 6, that is, the fourth electrical component 8 is located at the inlet of the first fan 3 or the second fan 4. At the outlet.

Preferably, the gap between the air outlet of the first air channel 5 and the first electrical component 1 is smaller than the gap between the air outlet of the second air channel 6 and the second electrical component 2 . The distance between the air outlet of the first air passage and the first electrical part is relatively small, so that the cold air blown out of the air outlet of the first air passage is more concentrated, so as to perform good heat dissipation on the first electrical part and avoid the first air passage The wind blown out of the air outlet is more divergent, resulting in poor cooling effect of the wind.

Preferably, the volute 9 includes a first plate body 92, the first plate body 92 is arranged away from the second electrical component 2, and forms part of the side wall at the air outlet of the first air channel 5, along the outlet of the first air channel 5 Wind direction (direction from the first blower to the first electrical part), the first plate body 92 is inclined to the direction away from the second electrical part 2, so that the wind blown by the first fan 3 through the air outlet of the first air channel 5 can To dissipate heat from the third electrical component 7, the first air duct 5 is in an R shape or approximately in an R shape. As shown in FIG. 3 and FIG. 4 , along the direction from right to left, the first plate body is inclined upward.

Along the air outlet direction of the first air duct 5, the air outlet of the first air duct 5 is inclined in a direction away from the second electrical component 2, so that the heat dissipation effect of the first fan 3 on the first electrical component 1 is consistent or close to the same , so as to make the temperature of the first electric part 1 uniform everywhere. As shown in FIG. 3 and FIG. 4 , along the direction from right to left, the air outlet of the first air duct is inclined upward.

Preferably, the volute 9 includes a second plate body 93, the second plate body 93 is arranged away from the first electrical component 1, and forms part of the side wall at the air outlet of the second air channel 6, along the outlet of the second air channel 6 In the direction of the wind (from the second fan to the direction of the second electrical part), the second plate body 93 is inclined away from the first electrical part 1, so that the wind blown by the second fan 4 through the air outlet of the second air channel 6 can To dissipate heat from the fourth electrical component 8, the second air channel 6 is R-shaped or approximately R-shaped. As shown in Fig. 3 and Fig. 4, along the direction from right to left, the second plate body is inclined downward.

Along the air outlet direction of the second air duct 6, the air outlet of the second air duct 6 is inclined in a direction away from the first electrical component 1, so that the heat dissipation effect of the second fan 4 on the second electrical component 2 is consistent or close to the same , so that the temperature of the second electrical component 2 is uniform throughout. As shown in Fig. 3 and Fig. 4, along the direction from right to left, the air outlet of the second air channel is inclined downward.

The first electrical component 1 is a magnetron.

The second electrical component 2 is a transformer or a frequency converter.

The first fan 3 and the second fan 4 are arranged up and down in the height direction, and the air outlet of the first air duct 5 and the air outlet of the second fan 4 face the magnetron and the transformer respectively. The air outlet of the first air channel 5 is not in close contact with the magnetron, and a certain distance is reserved, and the air outlet of the second fan 4 is not in close contact with the transformer, and a certain distance is also reserved. Preferably, the first fan 3 is a centrifugal fan, and the second fan 4 is a centrifugal fan. Because the wind pressure of the centrifugal fan is generally higher, it can better overcome the resistance in the heat dissipation channel of the magnetron, and at the same time, the hot air for cooling the transformer can be blown to the far end and discharged from the air duct. This can improve the heat dissipation of the heating element in the microwave oven, so that the temperature rise is lower. The air outlet of the first air duct 5 has a smaller distance near the magnetron, and the air outlet of the second air duct 6 has a larger distance near the transformer, so that part of the air volume of the second fan 4 can be dispersed to enhance the heat dissipation of the high voltage diode. Due to the limitation of the space size in the heat dissipation chamber, the outlet of the air duct using a single centrifugal fan cannot cool all the electronic components well under the existing layout. Two centrifugal fans (the first fan 3 and the second fan 4) are used with a single volute 9 Double outlets can just solve this problem, and the use of two centrifugal fans can greatly reduce the size of the fan and the speed of the fan, which directly results in the reduction of noise.

Of course, the first fan 3 and/or the second fan 4 may also be an axial flow fan or a diagonal flow fan.

The main body of the microwave oven also defines a cooking cavity, and the microwave oven also includes a rear guide vane 10, the rear guide vane defines a flow channel, the inlet of the flow channel communicates with the air outlet of the first air channel, and the first outlet of the flow channel communicates with the cooking cavity. The second outlet of the flow channel is facing the side of the first electrical component away from the first air channel. After entering the flow channel through the air outlet of the first air channel, part of the air flows into the cooking cavity, and part of the air is far away from the first electrical component. One side of an air duct (such as the left side of the first electrical component in Fig. 3 and Fig. 4) conducts heat dissipation.

The microwave oven also includes a power cord 11 and a high-voltage capacitor 12, the power cord is arranged above the third electrical part (on the side where the third electrical part is away from the first air duct), and the high-voltage capacitor is arranged between the fourth electrical part and the second air duct. between the roads.

Embodiment two:

The difference from Embodiment 1 is that the air outlet of the first air channel 5 is attached to the first electrical component 1 .

The air outlet of the first air duct 5 can also be closely connected with the first electrical part 1, that is, the air outlet of the first air duct 5 is in close contact with the surface of the first electrical part 1, so as to improve the heat dissipation effect of the first electrical part 1, Therefore, the size and rotation speed of the first fan 3 can be further reduced, and the noise of the first fan 3 can be reduced.

Regarding the position of the third electrical part, in the first specific embodiment, the microwave oven also includes a third electrical part 7; the third electrical part 7 is located between the first electrical part 1 and the second electrical part 2, and the third The electrical component 7 and the volute 9 are respectively located on opposite sides of the first electrical component 1 .

The height of the third electrical component 7 is between the height of the first electrical component 1 and the height of the second electrical component 2, the volute 9 is located on one side of the first electrical component 1, and the third electrical component 7 is located on the first electrical component 1 on the other side. For example, the volute 9 is located on the right side of the first electrical component 1 , and the third electrical component 7 is located on the left side of the first electrical component 1 .

In the second specific embodiment, the third electrical component 7 is located at the air inlet of the first air channel 5 or the second air channel 6, that is, the third electrical component 7 is located at the inlet of the first fan 3 or the second fan 4. At the outlet.

Embodiment three:

The difference from Embodiment 1 or Embodiment 2 is that the air outlet of the second air duct 6 is attached to the second electrical component 2 .

The air outlet of the second air duct can also be closely connected with the second electrical part, that is, the air outlet of the second air duct is in close contact with the surface of the second electrical part, so as to improve the heat dissipation effect on the second electrical part, thereby further reducing the second electric part. The size and speed of the second fan reduce the noise of the second fan.

To sum up, in the microwave oven provided by the embodiment of the utility model, the small-sized first fan 3 and the second fan 4 replace the single centrifugal or axial fan in the related art as the cooling fan, effectively reducing the aerodynamic noise of the microwave oven and improving The heat dissipation of the heating element inside the microwave oven is improved.

In the description of the utility model, unless otherwise specified and limited, the term "plurality" refers to two or more; unless otherwise specified or explained, the terms "connected", "fixed", etc. In a broad sense, for example, "connection" may be a fixed connection, a detachable connection, an integral connection, or an electrical connection; it may be a direct connection or an indirect connection through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

In the description of this specification, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right" etc. are based on the orientation shown in the drawings Or positional relationship, is only for the convenience of describing the utility model and simplifying the description, but does not indicate or imply that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, therefore, it cannot be understood as a limitation to the utility model. limit.

In the description of this specification, descriptions of the terms "one embodiment", "some embodiments", "specific embodiments" and the like mean that specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in the present application. Novel at least one embodiment or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (13)

1. A microwave oven, characterized in that, comprising: The main body of the microwave oven; The first electrical part and the second electrical part are located in the main body of the microwave oven; The volute defines a first air channel and a second air channel, the air outlet of the first air channel is set corresponding to the first electrical component, and the air outlet of the second air channel is set corresponding to the second electrical component ; a first blower located in the first air duct; and The second fan is located in the second air duct. 2. The microwave oven according to claim 1, wherein: The first electrical component and the second electrical component are arranged in the vertical direction, the first air channel and the second air channel are arranged in the vertical direction, and the first fan and the second fan are arranged in the vertical direction set up. 3. The microwave oven according to claim 1, wherein: There is a gap between the air outlet of the first air channel and the first electrical component. 4. The microwave oven according to claim 3, further comprising a third electrical component; The third electrical component is located on a side of the first air channel away from the second electrical component, and is located on the same side of the first electrical component as the first air channel; Alternatively, the third electrical part is located between the first electrical part and the second electrical part, and the third electrical part and the first air duct are respectively located on opposite sides of the first electrical part. side; Alternatively, the third electrical component is located at the air inlet of the first air duct or the second air duct. 5. The microwave oven according to claim 1, wherein: The air outlet of the first air duct is attached to the first electrical component. 6. The microwave oven according to claim 5, further comprising a third electrical component; The third electrical part is located between the first electrical part and the second electrical part, and the third electrical part and the volute are respectively located on opposite sides of the first electrical part; Alternatively, the third electrical component is located at the air inlet of the first air duct or the second air duct. 7. A microwave oven according to any one of claims 3 to 6, characterized in that, There is a gap between the air outlet of the second air duct and the second electrical component. 8. The microwave oven according to claim 7, further comprising a fourth electrical component; The fourth electrical component is located on a side of the second air duct away from the first electrical component, and is located on the same side of the second electrical component as the second air duct; or, The fourth electrical component is located between the first electrical component and the second electrical component, and the fourth electrical component and the second air duct are respectively located on opposite sides of the second electrical component; Alternatively, the fourth electrical component is located at the air inlet of the first air duct or the second air duct. 9. The microwave oven according to claim 7, wherein: The gap between the air outlet of the first air channel and the first electrical component is smaller than the gap between the air outlet of the second air channel and the second electrical component. 10. The microwave oven according to claim 1 or 2, characterized in that, The air outlet of the second air duct is attached to the second electrical component. 11. The microwave oven according to claim 1 or 2, characterized in that, The volute includes a first plate, the first plate is set away from the second electrical component, and forms part of the side wall at the air outlet of the first air duct, along the side of the first air duct In the air outlet direction, the first plate body is inclined away from the second electrical component; and/or, Along the air outlet direction of the first air duct, the air outlet of the first air duct is inclined in a direction away from the second electrical component. 12. The microwave oven according to claim 1 or 2, characterized in that, The volute includes a second plate, the second plate is set away from the first electrical component, and forms part of the side wall at the air outlet of the second air duct, along the side of the second air duct In the air outlet direction, the second plate body is inclined away from the first electrical component; and/or, Along the air outlet direction of the second air duct, the air outlet of the second air duct is inclined in a direction away from the first electrical component. 13. The microwave oven according to claim 1 or 2, characterized in that, The first fan is a centrifugal fan; and/or, The second fan is a centrifugal fan; and/or, The first electrical component comprises a magnetron; and/or, The second electrical component includes a transformer or a frequency converter; and/or, The volute is a hollow structure, and the hollow structure is provided with a partition that separates the hollow structure into the first air channel and the second air channel, or the volute includes a first sub-volute The casing and the second sub-volute, the first sub-volute defines the first air passage, the second sub-volute defines the second air passage, the first sub-volute and the first sub-volute The second sub-volute is located on the same side of the first electrical component or on two opposite sides of the first electrical component.